Can I escape double quotes in cell's validation list?
range.validation({
dataType: "list",
showButton: true,
comparerType: "list",
from: `"Item 1", Item 2, Items 3"`, // Double quotes after Item 1 is required, options: Item 1", Item 2, Item 3.
allowNulls: false,
type: "warning",
messageTemplate: "Invalid."
});